Full-field hygroscopic characterization of tough 3D-printed supramolecular hydrogels

N.H. Vonk, S.C.A. van Adrichem, D.J. Wu, P.Y.W. Dankers, J.P.M. Hoefnagels (Corresponding author)

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

1 Citaat (Scopus)
31 Downloads (Pure)

Samenvatting

Chain-extended ureido-pyrimidinone poly(ethylene glycol) (CE-UPy-PEG) is a supramolecular hydrogel with excellent mechanical properties and shape memory capabilities, making it highly suitable for 3D printing of complex biomimetic structures to mimic biomaterials. However, its transient hygroexpansion response under environmental change, specifically relative humidity (RH), which is strongly affected by the supramolecular sub-structure, is poorly understood. Therefore, a high-precision full-field fiber-swelling methodology is applied to 3D-printed CE-UPy-PEG fibers, enabling investigation of the influence of PEG chain length (1.5, 3, and 10 kg/mol studied here) and RH rate from wet to dry on the longitudinal and transverse surface strain evolution during multiple RH cycles. The PEG length directly influences the fibers' hygroscopic properties, because only CE-UPy-PEG3k and CE-UPy-PEG10k exhibit a phase transformation from semicrystalline to amorphous at higher RH levels, which is fully described by a phenomenological phase transformation model. Furthermore, all fibers display cyclic repeatability (shape memory), increased swelling for longer PEG chains and lower RH rate, and disappearance of sub-millimeter-sized tube-like voids after wetting.

Originele taal-2Engels
Pagina's (van-tot)1120-1131
Aantal pagina's12
TijdschriftJournal of Polymer Science
Volume61
Nummer van het tijdschrift12
DOI's
StatusGepubliceerd - 15 jun. 2023

Bibliografische nota

Funding Information:
The authors would like to thank Tonny Bosman (SupraPolix) for the delivery of the UPy‐hydrogels. This work is part of an Industrial Partnership Programme (i43‐FIP) of the Foundation for Fundamental Research on Matter (FOM), which is part of the Netherlands Organization for Scientific Research (NWO). This research programme is co‐financed by Canon Production Printing, University of Twente, Eindhoven University of Technology, and the “Topconsortia voor Kennis en lnnovatie (TKl)” allowance from the Ministry of Economic Affairs and by the partners of Regenerative Medicine Crossing Borders (RegMed XB) powered by Health‐Holland, Top Sector Life Sciences & Health, and the Ministry of Education, Culture and Science (Gravity Programs 024.001.035 and 024.003.013).

Financiering

The authors would like to thank Tonny Bosman (SupraPolix) for the delivery of the UPy‐hydrogels. This work is part of an Industrial Partnership Programme (i43‐FIP) of the Foundation for Fundamental Research on Matter (FOM), which is part of the Netherlands Organization for Scientific Research (NWO). This research programme is co‐financed by Canon Production Printing, University of Twente, Eindhoven University of Technology, and the “Topconsortia voor Kennis en lnnovatie (TKl)” allowance from the Ministry of Economic Affairs and by the partners of Regenerative Medicine Crossing Borders (RegMed XB) powered by Health‐Holland, Top Sector Life Sciences & Health, and the Ministry of Education, Culture and Science (Gravity Programs 024.001.035 and 024.003.013).

FinanciersFinanciernummer
Health~Holland
Health~Holland
Regenerative Medicine Crossing Borders
Topconsortia voor Kennis en lnnovatie
Health~Holland
Foundation for Fundamental Research on Matter
University of Twente
Technische Universiteit Eindhoven
Ministerie van Economische Zaken en Klimaat
Ministerie van OCW024.003.013, 024.001.035
Nederlandse Organisatie voor Wetenschappelijk Onderzoek

    Vingerafdruk

    Duik in de onderzoeksthema's van 'Full-field hygroscopic characterization of tough 3D-printed supramolecular hydrogels'. Samen vormen ze een unieke vingerafdruk.

    Citeer dit